In the information age of today, who can grasp the important information, who can seize the initiative, the industry won. So, how to manage this large amount of information? Undoubtedly is to use the database; how can we find a lot of information, important information they need? The answer is that the database full-text search.
Kim Shin Bridge Company, for many years, been engaged in database development and research. Distributed text retrieval system is the company's main products, widely used in Internet and intranet information retrieval into. And get users.
Distributed text retrieval system, has the following characteristics:
1, database capacity, there is no maximum limit on the number of records.
Second, retrieval speed, support characters, words, sentences and other long-hybrid search; example: the database of the full-text search 2000MB average of about 0.8 seconds with a time.
Third, indexing is faster, can add real-time information automatically append the index, and the index is little room for expansion (zero inflation).
Fourth, support multiple users simultaneously search, and speed is not affected. The results will be absolutely accurate.
Distributed text retrieval system logical structure:
Figure 1, distributed text retrieval system logical structure
Distributed text retrieval system logical structure, the exceptionally network part and the part within the network, external network part and INTERNET connection, providing WWW services, some within the network to provide control and data services. External network and internal networks based TCP / IP protocol for internal communications within the network is to use the internal IP address, the request came from outside the network can not directly reach the internal network, to ensure data security. Of which:
WWW-1, WWW-2, WWW-3, is identical WEB server, according to the user's visits to any extension, that is, when a user visits is large, existing resources can not meet the user's request, can add 1 or more WEB server, WEB server in order to achieve to reduce the existing pressure, and advanced user access speed. Users access the system, first by the WWW-0 access, unified by the EBS to scheduling, to find the most busy of the WEB server, on the identification by the server to process the user request.
EBS SERVER is the total control of the server system; it is responsible for scheduling the system, users and access control, manage all the database resources, the output of the data traffic statistics, user logging operations.
TBS-1, TBS-2, TBS-3, TBS-4 is the system data server. The content of the database is exactly the same as each other for backup; through EBS server to the data server for all scheduling, the average distribution of user access requests to each server. WEB SERVER is built with TBS SERVER CLIENT / SERVER operate the structure.
TBS is a database management tool, it can use local and remote database management; such as: Database database, increase record, modify records, delete records, indexing, and so on. TBS can create multiple index databases; such as: field index, the index level, code index, full-text index. When making a remote database management, payment on the server side need to start a letter-party software bridge database services, remote administrator through the user's checking account and password, you can operate the local database as the same as for database management.
Distributed text retrieval system of data manipulation process:
First, the information input, can the local entry and remote entry, you can operate the browser mode and database mode.
Secondly, the use of information, users can access through the browser to the remote site server, for information browsing and information retrieval. If the administrator can also maintain the data, such as: add, delete, change and so on.
Distributed text retrieval system applications:
Product information publishing and retrieving.
The release of corporate information and inquiries.
Online Store.
The release of news and information, browse, search.
CD-ROM database search.